Vulnerability · Published Sep 24, 2020 · Assigned by cisco

CVE-2020-3552Cisco Aironet Access Points Ethernet Wired Clients Denial of Service Vulnerability

High 7.4

In plain English

A high-severity null pointer dereference in Cisco Aironet Access Point Software from Cisco. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 42% of all known vulnerabilities).

Severity (CVSS 3.0)7.4High

Exploit odds (30 days)0.5%top 58.0% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

A vulnerability in the Ethernet packet handling of Cisco Aironet Access Points (APs) Software could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to insufficient input validation. An attacker could exploit this vulnerability by connecting as a wired client to the Ethernet interface of an affected device and sending a series of specific packets within a short time frame. A successful exploit could allow the attacker to cause a NULL pointer access that results in a reload of the affected device.

Affected products (as reported)

Vendor	Product	Versions
Cisco	Cisco Aironet Access Point Software	n/a

Weakness: CWE-476 · Vector: CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

References

20200924 Cisco Aironet Access Points Ethernet Wired Clients Denial of Service Vulnerability vendor-advisory, x_refsource_CISCO